Description

Sungrow PowerStack ST225kWh-110kW-2h | C&I Energy Storage System 229 kWh – 110 kW with Liquid Cooling

The Sungrow PowerStack ST225kWh-110kW-2h is a BESS (Battery Energy Storage System) designed for Commercial and Industrial (C&I) projects requiring reliable energy storage, high efficiency, and maximum operational safety.

With a battery capacity of 229 kWh (BOL) and a nominal power output of 110 kW, this system enables self-consumption optimization, peak shaving, demand management, and industrial backup through a highly integrated architecture.

Its design featuring intelligent liquid cooling and AI-based thermal control positions it as an advanced solution within the mid-scale industrial energy storage segment.

High-Stability LFP Battery Technology

The ST225kWh-110kW-2h incorporates LFP (Lithium Iron Phosphate) cells in a 256S1P configuration, offering:

• Greater thermal stability compared to NMC chemistries
• Extended operational lifetime
• Enhanced safety for industrial environments
• 0–100% depth of discharge
• Nominal voltage range from 691.2 V to 934.4 V

This configuration makes it a robust solution for industrial applications with high cycling requirements.

High Energy Efficiency (Up to 98.6%)

The system integrates a PCS with a maximum efficiency of 98.6%, reducing losses and maximizing project profitability.

Main electrical characteristics:

• Nominal AC power: 110 kW
• Nominal voltage: 400 V
• AC voltage range: 340 – 440 V
• Nominal frequency: 50 Hz
• THD < 3%
• Adjustable power factor (1.0 leading – 1.0 lagging)

Supports On-Grid and Off-Grid operation (additional transformer cabinet required in isolated mode).

Intelligent Liquid Cooling with AI Control

One of the key differentiators of the 110 kW PowerStack is its intelligent liquid cooling system:

• Maximum cell temperature difference ≤ 2.2 ºC
• AI-based thermal balancing reducing daily system heat loss by up to 33%
• Improved stability under demanding load conditions

This results in lower degradation rates and extended system lifespan.

Advanced Multi-Level Safety for Industrial Applications

The ST225kWh-110kW-2h is designed with a comprehensive safety architecture:

• AI-based cell health monitoring
• Three-level overcurrent protection (PACK, RACK, and PCS)
• Three-level fire prevention system
• Combustible gas, smoke, and heat detectors
• FK5112 fire suppression system (optional aerosol)

Compliant with international standards including:
IEC 62619, IEC 63056, IEC 62040, IEC 62477, IEC 61000, IEC 62933 and UN 38.3

Scalability for C&I Projects

The system allows up to 10 units in parallel.

This enables energy storage configurations tailored for logistics centers, light industry, industrial PV self-consumption systems, and microgrids.

Key Technical Specifications

• Battery capacity (BOL): 229 kWh
• Nominal power: 110 kW
• Dimensions: 1150 × 2450 × 1610 mm
• Weight: ≤ 3,100 kg
• Protection rating: IP55
• Operating temperature: -30 °C to 50 °C (>45 °C derating)
• Maximum altitude: ≤ 3000 m
• Noise level: ≤ 70 dB
• Communication: Ethernet / Modbus TCP

Recommended Applications

• Industrial peak shaving
• Demand management
• Backup power for critical processes
• Integration with C&I photovoltaic plants
• Microgrids
• Industrial self-consumption optimization